20662434 has 24 divisors (see below), whose sum is σ = 48212892. Its totient is φ = 6357600.

The previous prime is 20662423. The next prime is 20662451. The reversal of 20662434 is 43426602.

20662434 is a `hidden beast` number, since 2 + 0 + 6 + 624 + 34 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19847025 + 815409 = 4455^2 + 903^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20662398 and 20662407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43917 + ... + 44384.

Almost surely, 2^20662434 is an apocalyptic number.

20662434 is an abundant number, since it is smaller than the sum of its proper divisors (27550458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20662434 is a wasteful number, since it uses less digits than its factorization.

20662434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88322 (or 88319 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 20662434 is about 4545.5950105569. The cubic root of 20662434 is about 274.4061410821.

The spelling of 20662434 in words is "twenty million, six hundred sixty-two thousand, four hundred thirty-four".